IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg)
Hydra
The Hydra
OriginAncient
AbbreviationHya
GenitiveHydrae
Pronunciation/ˈhaɪdrə/ genitive /ˈhaɪdriː/
HIGH-druh
LocationCelestial Equator
Primary StarAlphard (α Hya)
Right Ascention 9h 28m Declination -8° 40'
Martian Solar Lag δ(🜨→♂) +0.272 h (16.3 min)
Hydra represents the Lernaean Hydra, a reptilian monster so vile that even its breath and blood were highly poisonous. It had nine serpent heads, eight mortal and one immortal. Every time one was cut off two would grow in its place. Defeating the Lernaean Hydra was the second labor assigned to Hercules by King Eurystheus. In the marshes of Lerna, Hercules drew out the Hydra from its lair, and with his mighty club, bashed one of its heads in. In its place, two heads sprouted, just as mean and deadly as the original. He realized he would need to take a different approach. He had his nephew Iolaus quickly cauterize each stump after it was bashed in. This prevented the heads from growing back. Hercules did this with each of the mortal heads. He struck off the immortal head and buried it deep in the ground and placed a huge rock on top of it. With his second labor complete, he dipped the tips of his arrows into the blood of the Hydra, covering them with deadly poison. In a second myth involving Hydra, this constellation represents the snake that Corvus used in a lie to Apollo.
www.underthesky.com
Hydra as depicted by Johann Bayer in his Uranometria (1603). Source image provided by www.RareMaps.com — Barry Lawrence Ruderman Antique Maps Inc. Via www.underthenightsky.com.
←Hydra 153→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra 153 2 Hydra 153 3 Hydra 153 4 Hydra 153 5 Hydra 153 6 Hydra 153 7 Hydra 153 8 Hydra 153 9 Hydra 153 10 Hydra 153 11 Hydra 153 12 Hydra 153 13 Hydra 153 14 Hydra 153 15 Hydra 153 16 Hydra 153 17 Hydra 153 18 Hydra 153 19 Hydra 153 20 Hydra 153 21 Hydra 153 22 Hydra 153 23 Hydra 153 24 Hydra 153 25 Hydra 153 26 Hydra 153 27 Hydra 153 28 Hydra 153 1 Corvus 153 20 November 1898 21 November 1898 22 November 1898 23 November 1898 24 November 1898 25 November 1898 26 November 1898 27 November 1898 28 November 1898 29 November 1898 30 November 1898 1 December 1898 2 December 1898 3 December 1898 4 December 1898 5 December 1898 6 December 1898 7 December 1898 8 December 1898 9 December 1898 10 December 1898 11 December 1898 12 December 1898 13 December 1898 14 December 1898 15 December 1898 16 December 1898 17 December 1898 18 December 1898 19 December 1898
MS -45091 MS -45090 MS -45089 MS -45088 MS -45087 MS -45086 MS -45085 MS -45084 MS -45083 MS -45082 MS -45081 MS -45080 MS -45079 MS -45078 MS -45077 MS -45076 MS -45075 MS -45074 MS -45073 MS -45072 MS -45071 MS -45070 MS -45069 MS -45068 MS -45067 MS -45066 MS -45065 MS -45064 MS -45063 MD -46354 MD -46353 MD -46352 MD -46351 MD -46350 MD -46349 MD -46348 MD -46347 MD -46346 MD -46345 MD -46344 MD -46343 MD -46342 MD -46341 MD -46340 MD -46339 MD -46338 MD -46337 MD -46336 MD -46335 MD -46334 MD -46333 MD -46332 MD -46331 MD -46330 MD -46329 MD -46328 MD -46327 MD -46326 MD -46325